/*!
 * Cropper v2.3.4
 * https://github.com/fengyuanchen/cropper
 *
 * Copyright (c) 2014-2016 Fengyuan Chen and contributors
 * Released under the MIT license
 *
 * Date: 2016-09-03T05:50:45.412Z
 */

(function (factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as anonymous module.
        define(['jquery'], factory);
    } else if (typeof exports === 'object') {
        // Node / CommonJS
        factory(require('jquery'));
    } else {
        // Browser globals.
        factory(jQuery);
    }
})(function ($) {

    'use strict';

    // Globals
    var $window = $(window);
    var $document = $(document);
    var location = window.location;
    var navigator = window.navigator;
    var ArrayBuffer = window.ArrayBuffer;
    var Uint8Array = window.Uint8Array;
    var DataView = window.DataView;
    var btoa = window.btoa;

    // Constants
    var NAMESPACE = 'cropper';

    // Classes
    var CLASS_MODAL = 'cropper-modal';
    var CLASS_HIDE = 'cropper-hide';
    var CLASS_HIDDEN = 'cropper-hidden';
    var CLASS_INVISIBLE = 'cropper-invisible';
    var CLASS_MOVE = 'cropper-move';
    var CLASS_CROP = 'cropper-crop';
    var CLASS_DISABLED = 'cropper-disabled';
    var CLASS_BG = 'cropper-bg';

    // Events
    var EVENT_MOUSE_DOWN = 'mousedown touchstart pointerdown MSPointerDown';
    var EVENT_MOUSE_MOVE = 'mousemove touchmove pointermove MSPointerMove';
    var EVENT_MOUSE_UP = 'mouseup touchend touchcancel pointerup pointercancel MSPointerUp MSPointerCancel';
    var EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';
    var EVENT_DBLCLICK = 'dblclick';
    var EVENT_LOAD = 'load.' + NAMESPACE;
    var EVENT_ERROR = 'error.' + NAMESPACE;
    var EVENT_RESIZE = 'resize.' + NAMESPACE; // Bind to window with namespace
    var EVENT_BUILD = 'build.' + NAMESPACE;
    var EVENT_BUILT = 'built.' + NAMESPACE;
    var EVENT_CROP_START = 'cropstart.' + NAMESPACE;
    var EVENT_CROP_MOVE = 'cropmove.' + NAMESPACE;
    var EVENT_CROP_END = 'cropend.' + NAMESPACE;
    var EVENT_CROP = 'crop.' + NAMESPACE;
    var EVENT_ZOOM = 'zoom.' + NAMESPACE;

    // RegExps
    var REGEXP_ACTIONS = /^(e|w|s|n|se|sw|ne|nw|all|crop|move|zoom)$/;
    var REGEXP_DATA_URL = /^data:/;
    var REGEXP_DATA_URL_HEAD = /^data:([^;]+);base64,/;
    var REGEXP_DATA_URL_JPEG = /^data:image\/jpeg.*;base64,/;

    // Data keys
    var DATA_PREVIEW = 'preview';
    var DATA_ACTION = 'action';

    // Actions
    var ACTION_EAST = 'e';
    var ACTION_WEST = 'w';
    var ACTION_SOUTH = 's';
    var ACTION_NORTH = 'n';
    var ACTION_SOUTH_EAST = 'se';
    var ACTION_SOUTH_WEST = 'sw';
    var ACTION_NORTH_EAST = 'ne';
    var ACTION_NORTH_WEST = 'nw';
    var ACTION_ALL = 'all';
    var ACTION_CROP = 'crop';
    var ACTION_MOVE = 'move';
    var ACTION_ZOOM = 'zoom';
    var ACTION_NONE = 'none';

    // Supports
    var SUPPORT_CANVAS = $.isFunction($('<canvas>')[0].getContext);
    var IS_SAFARI_OR_UIWEBVIEW = navigator && /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i.test(navigator.userAgent);

    // Maths
    var num = Number;
    var min = Math.min;
    var max = Math.max;
    var abs = Math.abs;
    var sin = Math.sin;
    var cos = Math.cos;
    var sqrt = Math.sqrt;
    var round = Math.round;
    var floor = Math.floor;

    // Utilities
    var fromCharCode = String.fromCharCode;

    function isNumber(n) {
        return typeof n === 'number' && !isNaN(n);
    }

    function isUndefined(n) {
        return typeof n === 'undefined';
    }

    function toArray(obj, offset) {
        var args = [];

        // This is necessary for IE8
        if (isNumber(offset)) {
            args.push(offset);
        }

        return args.slice.apply(obj, args);
    }

    // Custom proxy to avoid jQuery's guid
    function proxy(fn, context) {
        var args = toArray(arguments, 2);

        return function () {
            return fn.apply(context, args.concat(toArray(arguments)));
        };
    }

    function isCrossOriginURL(url) {
        var parts = url.match(/^(https?:)\/\/([^\:\/\?#]+):?(\d*)/i);

        return parts && (
            parts[1] !== location.protocol ||
            parts[2] !== location.hostname ||
            parts[3] !== location.port
        );
    }

    function addTimestamp(url) {
        var timestamp = 'timestamp=' + (new Date()).getTime();

        return (url + (url.indexOf('?') === -1 ? '?' : '&') + timestamp);
    }

    function getCrossOrigin(crossOrigin) {
        return crossOrigin ? ' crossOrigin="' + crossOrigin + '"' : '';
    }

    function getImageSize(image, callback) {
        var newImage;

        // Modern browsers (ignore Safari, #120 & #509)
        if (image.naturalWidth && !IS_SAFARI_OR_UIWEBVIEW) {
            return callback(image.naturalWidth, image.naturalHeight);
        }

        // IE8: Don't use `new Image()` here (#319)
        newImage = document.createElement('img');

        newImage.onload = function () {
            callback(this.width, this.height);
        };

        newImage.src = image.src;
    }

    function getTransform(options) {
        var transforms = [];
        var rotate = options.rotate;
        var scaleX = options.scaleX;
        var scaleY = options.scaleY;

        // Rotate should come first before scale to match orientation transform
        if (isNumber(rotate) && rotate !== 0) {
            transforms.push('rotate(' + rotate + 'deg)');
        }

        if (isNumber(scaleX) && scaleX !== 1) {
            transforms.push('scaleX(' + scaleX + ')');
        }

        if (isNumber(scaleY) && scaleY !== 1) {
            transforms.push('scaleY(' + scaleY + ')');
        }

        return transforms.length ? transforms.join(' ') : 'none';
    }

    function getRotatedSizes(data, isReversed) {
        var deg = abs(data.degree) % 180;
        var arc = (deg > 90 ? (180 - deg) : deg) * Math.PI / 180;
        var sinArc = sin(arc);
        var cosArc = cos(arc);
        var width = data.width;
        var height = data.height;
        var aspectRatio = data.aspectRatio;
        var newWidth;
        var newHeight;

        if (!isReversed) {
            newWidth = width * cosArc + height * sinArc;
            newHeight = width * sinArc + height * cosArc;
        } else {
            newWidth = width / (cosArc + sinArc / aspectRatio);
            newHeight = newWidth / aspectRatio;
        }

        return {
            width: newWidth,
            height: newHeight
        };
    }

    function getSourceCanvas(image, data) {
        var canvas = $('<canvas>')[0];
        var context = canvas.getContext('2d');
        var dstX = 0;
        var dstY = 0;
        var dstWidth = data.naturalWidth;
        var dstHeight = data.naturalHeight;
        var rotate = data.rotate;
        var scaleX = data.scaleX;
        var scaleY = data.scaleY;
        var scalable = isNumber(scaleX) && isNumber(scaleY) && (scaleX !== 1 || scaleY !== 1);
        var rotatable = isNumber(rotate) && rotate !== 0;
        var advanced = rotatable || scalable;
        var canvasWidth = dstWidth * abs(scaleX || 1);
        var canvasHeight = dstHeight * abs(scaleY || 1);
        var translateX;
        var translateY;
        var rotated;

        if (scalable) {
            translateX = canvasWidth / 2;
            translateY = canvasHeight / 2;
        }

        if (rotatable) {
            rotated = getRotatedSizes({
                width: canvasWidth,
                height: canvasHeight,
                degree: rotate
            });

            canvasWidth = rotated.width;
            canvasHeight = rotated.height;
            translateX = canvasWidth / 2;
            translateY = canvasHeight / 2;
        }

        canvas.width = canvasWidth;
        canvas.height = canvasHeight;

        if (advanced) {
            dstX = -dstWidth / 2;
            dstY = -dstHeight / 2;

            context.save();
            context.translate(translateX, translateY);
        }

        // Rotate should come first before scale as in the "getTransform" function
        if (rotatable) {
            context.rotate(rotate * Math.PI / 180);
        }

        if (scalable) {
            context.scale(scaleX, scaleY);
        }

        context.drawImage(image, floor(dstX), floor(dstY), floor(dstWidth), floor(dstHeight));

        if (advanced) {
            context.restore();
        }

        return canvas;
    }

    function getTouchesCenter(touches) {
        var length = touches.length;
        var pageX = 0;
        var pageY = 0;

        if (length) {
            $.each(touches, function (i, touch) {
                pageX += touch.pageX;
                pageY += touch.pageY;
            });

            pageX /= length;
            pageY /= length;
        }

        return {
            pageX: pageX,
            pageY: pageY
        };
    }

    function getStringFromCharCode(dataView, start, length) {
        var str = '';
        var i;

        for (i = start, length += start; i < length; i++) {
            str += fromCharCode(dataView.getUint8(i));
        }

        return str;
    }

    function getOrientation(arrayBuffer) {
        var dataView = new DataView(arrayBuffer);
        var length = dataView.byteLength;
        var orientation;
        var exifIDCode;
        var tiffOffset;
        var firstIFDOffset;
        var littleEndian;
        var endianness;
        var app1Start;
        var ifdStart;
        var offset;
        var i;

        // Only handle JPEG image (start by 0xFFD8)
        if (dataView.getUint8(0) === 0xFF && dataView.getUint8(1) === 0xD8) {
            offset = 2;

            while (offset < length) {
                if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
                    app1Start = offset;
                    break;
                }

                offset++;
            }
        }

        if (app1Start) {
            exifIDCode = app1Start + 4;
            tiffOffset = app1Start + 10;

            if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
                endianness = dataView.getUint16(tiffOffset);
                littleEndian = endianness === 0x4949;

                if (littleEndian || endianness === 0x4D4D /* bigEndian */) {
                    if (dataView.getUint16(tiffOffset + 2, littleEndian) === 0x002A) {
                        firstIFDOffset = dataView.getUint32(tiffOffset + 4, littleEndian);

                        if (firstIFDOffset >= 0x00000008) {
                            ifdStart = tiffOffset + firstIFDOffset;
                        }
                    }
                }
            }
        }

        if (ifdStart) {
            length = dataView.getUint16(ifdStart, littleEndian);

            for (i = 0; i < length; i++) {
                offset = ifdStart + i * 12 + 2;

                if (dataView.getUint16(offset, littleEndian) === 0x0112 /* Orientation */) {

                    // 8 is the offset of the current tag's value
                    offset += 8;

                    // Get the original orientation value
                    orientation = dataView.getUint16(offset, littleEndian);

                    // Override the orientation with its default value for Safari (#120)
                    if (IS_SAFARI_OR_UIWEBVIEW) {
                        dataView.setUint16(offset, 1, littleEndian);
                    }

                    break;
                }
            }
        }

        return orientation;
    }

    function dataURLToArrayBuffer(dataURL) {
        var base64 = dataURL.replace(REGEXP_DATA_URL_HEAD, '');
        var binary = atob(base64);
        var length = binary.length;
        var arrayBuffer = new ArrayBuffer(length);
        var dataView = new Uint8Array(arrayBuffer);
        var i;

        for (i = 0; i < length; i++) {
            dataView[i] = binary.charCodeAt(i);
        }

        return arrayBuffer;
    }

    // Only available for JPEG image
    function arrayBufferToDataURL(arrayBuffer) {
        var dataView = new Uint8Array(arrayBuffer);
        var length = dataView.length;
        var base64 = '';
        var i;

        for (i = 0; i < length; i++) {
            base64 += fromCharCode(dataView[i]);
        }

        return 'data:image/jpeg;base64,' + btoa(base64);
    }

    function Cropper(element, options) {
        this.$element = $(element);
        this.options = $.extend({}, Cropper.DEFAULTS, $.isPlainObject(options) && options);
        this.isLoaded = false;
        this.isBuilt = false;
        this.isCompleted = false;
        this.isRotated = false;
        this.isCropped = false;
        this.isDisabled = false;
        this.isReplaced = false;
        this.isLimited = false;
        this.wheeling = false;
        this.isImg = false;
        this.originalUrl = '';
        this.canvas = null;
        this.cropBox = null;
        this.init();
    }

    Cropper.prototype = {
        constructor: Cropper,

        init: function () {
            var $this = this.$element;
            var url;

            if ($this.is('img')) {
                this.isImg = true;

                // Should use `$.fn.attr` here. e.g.: "img/picture.jpg"
                this.originalUrl = url = $this.attr('src');

                // Stop when it's a blank image
                if (!url) {
                    return;
                }

                // Should use `$.fn.prop` here. e.g.: "http://example.com/img/picture.jpg"
                url = $this.prop('src');
            } else if ($this.is('canvas') && SUPPORT_CANVAS) {
                url = $this[0].toDataURL();
            }

            this.load(url);
        },

        // A shortcut for triggering custom events
        trigger: function (type, data) {
            var e = $.Event(type, data);

            this.$element.trigger(e);

            return e;
        },

        load: function (url) {
            var options = this.options;
            var $this = this.$element;
            var read;
            var xhr;

            if (!url) {
                return;
            }

            // Trigger build event first
            $this.one(EVENT_BUILD, options.build);

            if (this.trigger(EVENT_BUILD).isDefaultPrevented()) {
                return;
            }

            this.url = url;
            this.image = {};

            if (!options.checkOrientation || !ArrayBuffer) {
                return this.clone();
            }

            read = $.proxy(this.read, this);

            // XMLHttpRequest disallows to open a Data URL in some browsers like IE11 and Safari
            if (REGEXP_DATA_URL.test(url)) {
                return REGEXP_DATA_URL_JPEG.test(url) ?
                    read(dataURLToArrayBuffer(url)) :
                    this.clone();
            }

            xhr = new XMLHttpRequest();

            xhr.onerror = xhr.onabort = $.proxy(function () {
                this.clone();
            }, this);

            xhr.onload = function () {
                read(this.response);
            };

            if (options.checkCrossOrigin && isCrossOriginURL(url) && $this.prop('crossOrigin')) {
                url = addTimestamp(url);
            }

            xhr.open('get', url);
            xhr.responseType = 'arraybuffer';
            xhr.send();
        },

        read: function (arrayBuffer) {
            var options = this.options;
            var orientation = getOrientation(arrayBuffer);
            var image = this.image;
            var rotate = 0;
            var scaleX = 1;
            var scaleY = 1;

            if (orientation > 1) {
                this.url = arrayBufferToDataURL(arrayBuffer);

                switch (orientation) {

                    // flip horizontal
                    case 2:
                        scaleX = -1;
                        break;

                    // rotate left 180°
                    case 3:
                        rotate = -180;
                        break;

                    // flip vertical
                    case 4:
                        scaleY = -1;
                        break;

                    // flip vertical + rotate right 90°
                    case 5:
                        rotate = 90;
                        scaleY = -1;
                        break;

                    // rotate right 90°
                    case 6:
                        rotate = 90;
                        break;

                    // flip horizontal + rotate right 90°
                    case 7:
                        rotate = 90;
                        scaleX = -1;
                        break;

                    // rotate left 90°
                    case 8:
                        rotate = -90;
                        break;
                }
            }

            if (options.rotatable) {
                image.rotate = rotate;
            }

            if (options.scalable) {
                image.scaleX = scaleX;
                image.scaleY = scaleY;
            }

            this.clone();
        },

        clone: function () {
            var options = this.options;
            var $this = this.$element;
            var url = this.url;
            var crossOrigin = '';
            var crossOriginUrl;
            var $clone;

            if (options.checkCrossOrigin && isCrossOriginURL(url)) {
                crossOrigin = $this.prop('crossOrigin');

                if (crossOrigin) {
                    crossOriginUrl = url;
                } else {
                    crossOrigin = 'anonymous';

                    // Bust cache (#148) when there is not a "crossOrigin" property
                    crossOriginUrl = addTimestamp(url);
                }
            }

            this.crossOrigin = crossOrigin;
            this.crossOriginUrl = crossOriginUrl;
            this.$clone = $clone = $('<img' + getCrossOrigin(crossOrigin) + ' src="' + (crossOriginUrl || url) + '">');

            if (this.isImg) {
                if ($this[0].complete) {
                    this.start();
                } else {
                    $this.one(EVENT_LOAD, $.proxy(this.start, this));
                }
            } else {
                $clone.
                one(EVENT_LOAD, $.proxy(this.start, this)).
                one(EVENT_ERROR, $.proxy(this.stop, this)).
                addClass(CLASS_HIDE).
                insertAfter($this);
            }
        },

        start: function () {
            var $image = this.$element;
            var $clone = this.$clone;

            if (!this.isImg) {
                $clone.off(EVENT_ERROR, this.stop);
                $image = $clone;
            }

            getImageSize($image[0], $.proxy(function (naturalWidth, naturalHeight) {
                $.extend(this.image, {
                    naturalWidth: naturalWidth,
                    naturalHeight: naturalHeight,
                    aspectRatio: naturalWidth / naturalHeight
                });

                this.isLoaded = true;
                this.build();
            }, this));
        },

        stop: function () {
            this.$clone.remove();
            this.$clone = null;
        },

        build: function () {
            var options = this.options;
            var $this = this.$element;
            var $clone = this.$clone;
            var $cropper;
            var $cropBox;
            var $face;

            if (!this.isLoaded) {
                return;
            }

            // Unbuild first when replace
            if (this.isBuilt) {
                this.unbuild();
            }

            // Create cropper elements
            this.$container = $this.parent();
            this.$cropper = $cropper = $(Cropper.TEMPLATE);
            this.$canvas = $cropper.find('.cropper-canvas').append($clone);
            this.$dragBox = $cropper.find('.cropper-drag-box');
            this.$cropBox = $cropBox = $cropper.find('.cropper-crop-box');
            this.$viewBox = $cropper.find('.cropper-view-box');
            this.$face = $face = $cropBox.find('.cropper-face');

            // Hide the original image
            $this.addClass(CLASS_HIDDEN).after($cropper);

            // Show the clone image if is hidden
            if (!this.isImg) {
                $clone.removeClass(CLASS_HIDE);
            }

            this.initPreview();
            this.bind();

            options.aspectRatio = max(0, options.aspectRatio) || NaN;
            options.viewMode = max(0, min(3, round(options.viewMode))) || 0;

            if (options.autoCrop) {
                this.isCropped = true;

                if (options.modal) {
                    this.$dragBox.addClass(CLASS_MODAL);
                }
            } else {
                $cropBox.addClass(CLASS_HIDDEN);
            }

            if (!options.guides) {
                $cropBox.find('.cropper-dashed').addClass(CLASS_HIDDEN);
            }

            if (!options.center) {
                $cropBox.find('.cropper-center').addClass(CLASS_HIDDEN);
            }

            if (options.cropBoxMovable) {
                $face.addClass(CLASS_MOVE).data(DATA_ACTION, ACTION_ALL);
            }

            if (!options.highlight) {
                $face.addClass(CLASS_INVISIBLE);
            }

            if (options.background) {
                $cropper.addClass(CLASS_BG);
            }

            if (!options.cropBoxResizable) {
                $cropBox.find('.cropper-line, .cropper-point').addClass(CLASS_HIDDEN);
            }

            this.setDragMode(options.dragMode);
            this.render();
            this.isBuilt = true;
            this.setData(options.data);
            $this.one(EVENT_BUILT, options.built);

            // Trigger the built event asynchronously to keep `data('cropper')` is defined
            this.completing = setTimeout($.proxy(function () {
                this.trigger(EVENT_BUILT);
                this.trigger(EVENT_CROP, this.getData());
                this.isCompleted = true;
            }, this), 0);
        },

        unbuild: function () {
            if (!this.isBuilt) {
                return;
            }

            if (!this.isCompleted) {
                clearTimeout(this.completing);
            }

            this.isBuilt = false;
            this.isCompleted = false;
            this.initialImage = null;

            // Clear `initialCanvas` is necessary when replace
            this.initialCanvas = null;
            this.initialCropBox = null;
            this.container = null;
            this.canvas = null;

            // Clear `cropBox` is necessary when replace
            this.cropBox = null;
            this.unbind();

            this.resetPreview();
            this.$preview = null;

            this.$viewBox = null;
            this.$cropBox = null;
            this.$dragBox = null;
            this.$canvas = null;
            this.$container = null;

            this.$cropper.remove();
            this.$cropper = null;
        },

        render: function () {
            this.initContainer();
            this.initCanvas();
            this.initCropBox();

            this.renderCanvas();

            if (this.isCropped) {
                this.renderCropBox();
            }
        },

        initContainer: function () {
            var options = this.options;
            var $this = this.$element;
            var $container = this.$container;
            var $cropper = this.$cropper;

            $cropper.addClass(CLASS_HIDDEN);
            $this.removeClass(CLASS_HIDDEN);

            $cropper.css((this.container = {
                width: max($container.width(), num(options.minContainerWidth) || 200),
                height: max($container.height(), num(options.minContainerHeight) || 100)
            }));

            $this.addClass(CLASS_HIDDEN);
            $cropper.removeClass(CLASS_HIDDEN);
        },

        // Canvas (image wrapper)
        initCanvas: function () {
            var viewMode = this.options.viewMode;
            var container = this.container;
            var containerWidth = container.width;
            var containerHeight = container.height;
            var image = this.image;
            var imageNaturalWidth = image.naturalWidth;
            var imageNaturalHeight = image.naturalHeight;
            var is90Degree = abs(image.rotate) === 90;
            var naturalWidth = is90Degree ? imageNaturalHeight : imageNaturalWidth;
            var naturalHeight = is90Degree ? imageNaturalWidth : imageNaturalHeight;
            var aspectRatio = naturalWidth / naturalHeight;
            var canvasWidth = containerWidth;
            var canvasHeight = containerHeight;
            var canvas;

            if (containerHeight * aspectRatio > containerWidth) {
                if (viewMode === 3) {
                    canvasWidth = containerHeight * aspectRatio;
                } else {
                    canvasHeight = containerWidth / aspectRatio;
                }
            } else {
                if (viewMode === 3) {
                    canvasHeight = containerWidth / aspectRatio;
                } else {
                    canvasWidth = containerHeight * aspectRatio;
                }
            }
            canvasWidth = canvasWidth * 0.8;
            canvasHeight = canvasHeight * 0.8;

            canvas = {
                naturalWidth: naturalWidth,
                naturalHeight: naturalHeight,
                aspectRatio: aspectRatio,
                width: canvasWidth,
                height: canvasHeight
            };

            canvas.oldLeft = canvas.left = (containerWidth - canvasWidth) / 2;
            canvas.oldTop = canvas.top = (containerHeight - canvasHeight) / 2;

            this.canvas = canvas;
            this.isLimited = (viewMode === 1 || viewMode === 2);
            this.limitCanvas(true, true);
            this.initialImage = $.extend({}, image);
            this.initialCanvas = $.extend({}, canvas);
        },

        limitCanvas: function (isSizeLimited, isPositionLimited) {
            var options = this.options;
            var viewMode = options.viewMode;
            var container = this.container;
            var containerWidth = container.width;
            var containerHeight = container.height;
            var canvas = this.canvas;
            var aspectRatio = canvas.aspectRatio;
            var cropBox = this.cropBox;
            var isCropped = this.isCropped && cropBox;
            var minCanvasWidth;
            var minCanvasHeight;
            var newCanvasLeft;
            var newCanvasTop;

            if (isSizeLimited) {
                minCanvasWidth = num(options.minCanvasWidth) || 0;
                minCanvasHeight = num(options.minCanvasHeight) || 0;

                if (viewMode) {
                    if (viewMode > 1) {
                        minCanvasWidth = max(minCanvasWidth, containerWidth);
                        minCanvasHeight = max(minCanvasHeight, containerHeight);

                        if (viewMode === 3) {
                            if (minCanvasHeight * aspectRatio > minCanvasWidth) {
                                minCanvasWidth = minCanvasHeight * aspectRatio;
                            } else {
                                minCanvasHeight = minCanvasWidth / aspectRatio;
                            }
                        }
                    } else {
                        if (minCanvasWidth) {
                            minCanvasWidth = max(minCanvasWidth, isCropped ? cropBox.width : 0);
                        } else if (minCanvasHeight) {
                            minCanvasHeight = max(minCanvasHeight, isCropped ? cropBox.height : 0);
                        } else if (isCropped) {
                            minCanvasWidth = cropBox.width;
                            minCanvasHeight = cropBox.height;

                            if (minCanvasHeight * aspectRatio > minCanvasWidth) {
                                minCanvasWidth = minCanvasHeight * aspectRatio;
                            } else {
                                minCanvasHeight = minCanvasWidth / aspectRatio;
                            }
                        }
                    }
                }

                if (minCanvasWidth && minCanvasHeight) {
                    if (minCanvasHeight * aspectRatio > minCanvasWidth) {
                        minCanvasHeight = minCanvasWidth / aspectRatio;
                    } else {
                        minCanvasWidth = minCanvasHeight * aspectRatio;
                    }
                } else if (minCanvasWidth) {
                    minCanvasHeight = minCanvasWidth / aspectRatio;
                } else if (minCanvasHeight) {
                    minCanvasWidth = minCanvasHeight * aspectRatio;
                }

                canvas.minWidth = minCanvasWidth;
                canvas.minHeight = minCanvasHeight;
                canvas.maxWidth = Infinity;
                canvas.maxHeight = Infinity;
            }

            if (isPositionLimited) {
                if (viewMode) {
                    newCanvasLeft = containerWidth - canvas.width;
                    newCanvasTop = containerHeight - canvas.height;

                    canvas.minLeft = min(0, newCanvasLeft);
                    canvas.minTop = min(0, newCanvasTop);
                    canvas.maxLeft = max(0, newCanvasLeft);
                    canvas.maxTop = max(0, newCanvasTop);

                    if (isCropped && this.isLimited) {
                        canvas.minLeft = min(
                            cropBox.left,
                            cropBox.left + cropBox.width - canvas.width
                        );
                        canvas.minTop = min(
                            cropBox.top,
                            cropBox.top + cropBox.height - canvas.height
                        );
                        canvas.maxLeft = cropBox.left;
                        canvas.maxTop = cropBox.top;

                        if (viewMode === 2) {
                            if (canvas.width >= containerWidth) {
                                canvas.minLeft = min(0, newCanvasLeft);
                                canvas.maxLeft = max(0, newCanvasLeft);
                            }

                            if (canvas.height >= containerHeight) {
                                canvas.minTop = min(0, newCanvasTop);
                                canvas.maxTop = max(0, newCanvasTop);
                            }
                        }
                    }
                } else {
                    canvas.minLeft = -canvas.width;
                    canvas.minTop = -canvas.height;
                    canvas.maxLeft = containerWidth;
                    canvas.maxTop = containerHeight;
                }
            }
        },

        renderCanvas: function (isChanged) {
            var canvas = this.canvas;
            var image = this.image;
            var rotate = image.rotate;
            var naturalWidth = image.naturalWidth;
            var naturalHeight = image.naturalHeight;
            var aspectRatio;
            var rotated;

            if (this.isRotated) {
                this.isRotated = false;

                // Computes rotated sizes with image sizes
                rotated = getRotatedSizes({
                    width: image.width,
                    height: image.height,
                    degree: rotate
                });

                aspectRatio = rotated.width / rotated.height;

                if (aspectRatio !== canvas.aspectRatio) {
                    canvas.left -= (rotated.width - canvas.width) / 2;
                    canvas.top -= (rotated.height - canvas.height) / 2;
                    canvas.width = rotated.width;
                    canvas.height = rotated.height;
                    canvas.aspectRatio = aspectRatio;
                    canvas.naturalWidth = naturalWidth;
                    canvas.naturalHeight = naturalHeight;

                    // Computes rotated sizes with natural image sizes
                    if (rotate % 180) {
                        rotated = getRotatedSizes({
                            width: naturalWidth,
                            height: naturalHeight,
                            degree: rotate
                        });

                        canvas.naturalWidth = rotated.width;
                        canvas.naturalHeight = rotated.height;
                    }

                    this.limitCanvas(true, false);
                }
            }

            if (canvas.width > canvas.maxWidth || canvas.width < canvas.minWidth) {
                canvas.left = canvas.oldLeft;
            }

            if (canvas.height > canvas.maxHeight || canvas.height < canvas.minHeight) {
                canvas.top = canvas.oldTop;
            }

            canvas.width = min(max(canvas.width, canvas.minWidth), canvas.maxWidth);
            canvas.height = min(max(canvas.height, canvas.minHeight), canvas.maxHeight);

            this.limitCanvas(false, true);

            canvas.oldLeft = canvas.left = min(max(canvas.left, canvas.minLeft), canvas.maxLeft);
            canvas.oldTop = canvas.top = min(max(canvas.top, canvas.minTop), canvas.maxTop);

            this.$canvas.css({
                width: canvas.width,
                height: canvas.height,
                left: canvas.left,
                top: canvas.top
            });
//add by zhaoliang 20161224
            $("#drawing-board").css({
                width: canvas.width,
                height: canvas.height,
                left: canvas.left,
                top: canvas.top
            });
            $(".drawing-board-canvas").css({
                width: canvas.width,
                height: canvas.height
            });
//add end


            this.renderImage();

            if (this.isCropped && this.isLimited) {
                this.limitCropBox(true, true);
            }

            if (isChanged) {
                this.output();
            }
        },

        renderImage: function (isChanged) {
            var canvas = this.canvas;
            var image = this.image;
            var reversed;

            if (image.rotate) {
                reversed = getRotatedSizes({
                    width: canvas.width,
                    height: canvas.height,
                    degree: image.rotate,
                    aspectRatio: image.aspectRatio
                }, true);
            }

            $.extend(image, reversed ? {
                width: reversed.width,
                height: reversed.height,
                left: (canvas.width - reversed.width) / 2,
                top: (canvas.height - reversed.height) / 2
            } : {
                width: canvas.width,
                height: canvas.height,
                left: 0,
                top: 0
            });

            this.$clone.css({
                width: image.width,
                height: image.height,
                marginLeft: image.left,
                marginTop: image.top,
                transform: getTransform(image)
            });

            //图片旋转的时候，canvas也旋转
            $(".drawing-board-canvas").css({
                width: image.width,
                height: image.height,
                marginLeft: image.left,
                marginTop: image.top,
                transform: getTransform(image)
            });
            //end

            if (isChanged) {
                this.output();
            }
        },

        initCropBox: function () {
            var options = this.options;
            var canvas = this.canvas;
            var aspectRatio = options.aspectRatio;
            var autoCropArea = num(options.autoCropArea) || 0.8;
            var cropBox = {
                width: canvas.width,
                height: canvas.height
            };

            if (aspectRatio) {
                if (canvas.height * aspectRatio > canvas.width) {
                    cropBox.height = cropBox.width / aspectRatio;
                } else {
                    cropBox.width = cropBox.height * aspectRatio;
                }
            }

//add by zhaoliang 20161224
            canvas.top = 10;
            $("#drawing-board").css({
                width: canvas.width,
                height: canvas.height,
                left: canvas.left,
                top: canvas.top
            });
            $(".drawing-board-canvas").css({
                width: canvas.width,
                height: canvas.height
            });
            //$(".drawing-board-canvas").attr({
            //  width: canvas.width,
            //  height: canvas.height
            //});
//add end
            this.cropBox = cropBox;
            this.limitCropBox(true, true);

            // Initialize auto crop area
            cropBox.width = min(max(cropBox.width, cropBox.minWidth), cropBox.maxWidth);
            cropBox.height = min(max(cropBox.height, cropBox.minHeight), cropBox.maxHeight);

            // The width of auto crop area must large than "minWidth", and the height too. (#164)
            cropBox.width = max(cropBox.minWidth, cropBox.width * autoCropArea);
            cropBox.height = max(cropBox.minHeight, cropBox.height * autoCropArea);
            cropBox.oldLeft = cropBox.left = canvas.left + (canvas.width - cropBox.width) / 2;
            cropBox.oldTop = cropBox.top = canvas.top + (canvas.height - cropBox.height) / 2;

            this.initialCropBox = $.extend({}, cropBox);
        },

        limitCropBox: function (isSizeLimited, isPositionLimited) {
            var options = this.options;
            var aspectRatio = options.aspectRatio;
            var container = this.container;
            var containerWidth = container.width;
            var containerHeight = container.height;
            var canvas = this.canvas;
            var cropBox = this.cropBox;
            var isLimited = this.isLimited;
            var minCropBoxWidth;
            var minCropBoxHeight;
            var maxCropBoxWidth;
            var maxCropBoxHeight;

            if (isSizeLimited) {
                minCropBoxWidth = num(options.minCropBoxWidth) || 0;
                minCropBoxHeight = num(options.minCropBoxHeight) || 0;

                // The min/maxCropBoxWidth/Height must be less than containerWidth/Height
                minCropBoxWidth = min(minCropBoxWidth, containerWidth);
                minCropBoxHeight = min(minCropBoxHeight, containerHeight);
                maxCropBoxWidth = min(containerWidth, isLimited ? canvas.width : containerWidth);
                maxCropBoxHeight = min(containerHeight, isLimited ? canvas.height : containerHeight);

                if (aspectRatio) {
                    if (minCropBoxWidth && minCropBoxHeight) {
                        if (minCropBoxHeight * aspectRatio > minCropBoxWidth) {
                            minCropBoxHeight = minCropBoxWidth / aspectRatio;
                        } else {
                            minCropBoxWidth = minCropBoxHeight * aspectRatio;
                        }
                    } else if (minCropBoxWidth) {
                        minCropBoxHeight = minCropBoxWidth / aspectRatio;
                    } else if (minCropBoxHeight) {
                        minCropBoxWidth = minCropBoxHeight * aspectRatio;
                    }

                    if (maxCropBoxHeight * aspectRatio > maxCropBoxWidth) {
                        maxCropBoxHeight = maxCropBoxWidth / aspectRatio;
                    } else {
                        maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
                    }
                }

                // The minWidth/Height must be less than maxWidth/Height
                cropBox.minWidth = min(minCropBoxWidth, maxCropBoxWidth);
                cropBox.minHeight = min(minCropBoxHeight, maxCropBoxHeight);
                cropBox.maxWidth = maxCropBoxWidth;
                cropBox.maxHeight = maxCropBoxHeight;
            }

            if (isPositionLimited) {
                if (isLimited) {
                    cropBox.minLeft = max(0, canvas.left);
                    cropBox.minTop = max(0, canvas.top);
                    cropBox.maxLeft = min(containerWidth, canvas.left + canvas.width) - cropBox.width;
                    cropBox.maxTop = min(containerHeight, canvas.top + canvas.height) - cropBox.height;
                } else {
                    cropBox.minLeft = 0;
                    cropBox.minTop = 0;
                    cropBox.maxLeft = containerWidth - cropBox.width;
                    cropBox.maxTop = containerHeight - cropBox.height;
                }
            }
        },

        renderCropBox: function () {
            var options = this.options;
            var container = this.container;
            var containerWidth = container.width;
            var containerHeight = container.height;
            var cropBox = this.cropBox;

            if (cropBox.width > cropBox.maxWidth || cropBox.width < cropBox.minWidth) {
                cropBox.left = cropBox.oldLeft;
            }

            if (cropBox.height > cropBox.maxHeight || cropBox.height < cropBox.minHeight) {
                cropBox.top = cropBox.oldTop;
            }

            cropBox.width = min(max(cropBox.width, cropBox.minWidth), cropBox.maxWidth);
            cropBox.height = min(max(cropBox.height, cropBox.minHeight), cropBox.maxHeight);

            this.limitCropBox(false, true);

            cropBox.oldLeft = cropBox.left = min(max(cropBox.left, cropBox.minLeft), cropBox.maxLeft);
            cropBox.oldTop = cropBox.top = min(max(cropBox.top, cropBox.minTop), cropBox.maxTop);

            if (options.movable && options.cropBoxMovable) {

                // Turn to move the canvas when the crop box is equal to the container
                this.$face.data(DATA_ACTION, (cropBox.width === containerWidth && cropBox.height === containerHeight) ? ACTION_MOVE : ACTION_ALL);
            }

            this.$cropBox.css({
                width: cropBox.width,
                height: cropBox.height,
                left: cropBox.left,
                top: cropBox.top
            });

            if (this.isCropped && this.isLimited) {
                this.limitCanvas(true, true);
            }

            if (!this.isDisabled) {
                this.output();
            }
        },

        output: function () {
            this.preview();

            if (this.isCompleted) {
                this.trigger(EVENT_CROP, this.getData());
            }
        },

        initPreview: function () {
            var crossOrigin = getCrossOrigin(this.crossOrigin);
            var url = crossOrigin ? this.crossOriginUrl : this.url;
            var $clone2;

            this.$preview = $(this.options.preview);
            this.$clone2 = $clone2 = $('<img' + crossOrigin + ' src="' + url + '">');
            this.$viewBox.html($clone2);
            this.$preview.each(function () {
                var $this = $(this);

                // Save the original size for recover
                $this.data(DATA_PREVIEW, {
                    width: $this.width(),
                    height: $this.height(),
                    html: $this.html()
                });

                /**
                 * Override img element styles
                 * Add `display:block` to avoid margin top issue
                 * (Occur only when margin-top <= -height)
                 */
                $this.html(
                    '<img' + crossOrigin + ' src="' + url + '" style="' +
                    'display:block;width:100%;height:auto;' +
                    'min-width:0!important;min-height:0!important;' +
                    'max-width:none!important;max-height:none!important;' +
                    'image-orientation:0deg!important;">'
                );
            });
        },

        resetPreview: function () {
            this.$preview.each(function () {
                var $this = $(this);
                var data = $this.data(DATA_PREVIEW);

                $this.css({
                    width: data.width,
                    height: data.height
                }).html(data.html).removeData(DATA_PREVIEW);
            });
        },

        preview: function () {
            var image = this.image;
            var canvas = this.canvas;
            var cropBox = this.cropBox;
            var cropBoxWidth = cropBox.width;
            var cropBoxHeight = cropBox.height;
            var width = image.width;
            var height = image.height;
            var left = cropBox.left - canvas.left - image.left;
            var top = cropBox.top - canvas.top - image.top;

            if (!this.isCropped || this.isDisabled) {
                return;
            }

            this.$clone2.css({
                width: width,
                height: height,
                marginLeft: -left,
                marginTop: -top,
                transform: getTransform(image)
            });

            this.$preview.each(function () {
                var $this = $(this);
                var data = $this.data(DATA_PREVIEW);
                var originalWidth = data.width;
                var originalHeight = data.height;
                var newWidth = originalWidth;
                var newHeight = originalHeight;
                var ratio = 1;

                if (cropBoxWidth) {
                    ratio = originalWidth / cropBoxWidth;
                    newHeight = cropBoxHeight * ratio;
                }

                if (cropBoxHeight && newHeight > originalHeight) {
                    ratio = originalHeight / cropBoxHeight;
                    newWidth = cropBoxWidth * ratio;
                    newHeight = originalHeight;
                }

                $this.css({
                    width: newWidth,
                    height: newHeight
                }).find('img').css({
                    width: width * ratio,
                    height: height * ratio,
                    marginLeft: -left * ratio,
                    marginTop: -top * ratio,
                    transform: getTransform(image)
                });
            });
        },

        bind: function () {
            var options = this.options;
            var $this = this.$element;
            var $cropper = this.$cropper;

            if ($.isFunction(options.cropstart)) {
                $this.on(EVENT_CROP_START, options.cropstart);
            }

            if ($.isFunction(options.cropmove)) {
                $this.on(EVENT_CROP_MOVE, options.cropmove);
            }

            if ($.isFunction(options.cropend)) {
                $this.on(EVENT_CROP_END, options.cropend);
            }

            if ($.isFunction(options.crop)) {
                $this.on(EVENT_CROP, options.crop);
            }

            if ($.isFunction(options.zoom)) {
                $this.on(EVENT_ZOOM, options.zoom);
            }

            $cropper.on(EVENT_MOUSE_DOWN, $.proxy(this.cropStart, this));

            if (options.zoomable && options.zoomOnWheel) {
                $cropper.on(EVENT_WHEEL, $.proxy(this.wheel, this));
            }

            if (options.toggleDragModeOnDblclick) {
                $cropper.on(EVENT_DBLCLICK, $.proxy(this.dblclick, this));
            }

            $document.
            on(EVENT_MOUSE_MOVE, (this._cropMove = proxy(this.cropMove, this))).
            on(EVENT_MOUSE_UP, (this._cropEnd = proxy(this.cropEnd, this)));

            if (options.responsive) {
                $window.on(EVENT_RESIZE, (this._resize = proxy(this.resize, this)));
            }
        },

        unbind: function () {
            var options = this.options;
            var $this = this.$element;
            var $cropper = this.$cropper;

            if ($.isFunction(options.cropstart)) {
                $this.off(EVENT_CROP_START, options.cropstart);
            }

            if ($.isFunction(options.cropmove)) {
                $this.off(EVENT_CROP_MOVE, options.cropmove);
            }

            if ($.isFunction(options.cropend)) {
                $this.off(EVENT_CROP_END, options.cropend);
            }

            if ($.isFunction(options.crop)) {
                $this.off(EVENT_CROP, options.crop);
            }

            if ($.isFunction(options.zoom)) {
                $this.off(EVENT_ZOOM, options.zoom);
            }

            $cropper.off(EVENT_MOUSE_DOWN, this.cropStart);

            if (options.zoomable && options.zoomOnWheel) {
                $cropper.off(EVENT_WHEEL, this.wheel);
            }

            if (options.toggleDragModeOnDblclick) {
                $cropper.off(EVENT_DBLCLICK, this.dblclick);
            }

            $document.
            off(EVENT_MOUSE_MOVE, this._cropMove).
            off(EVENT_MOUSE_UP, this._cropEnd);

            if (options.responsive) {
                $window.off(EVENT_RESIZE, this._resize);
            }
        },

        resize: function () {
            var restore = this.options.restore;
            var $container = this.$container;
            var container = this.container;
            var canvasData;
            var cropBoxData;
            var ratio;

            // Check `container` is necessary for IE8
            if (this.isDisabled || !container) {
                return;
            }

            ratio = $container.width() / container.width;

            // Resize when width changed or height changed
            if (ratio !== 1 || $container.height() !== container.height) {
                if (restore) {
                    canvasData = this.getCanvasData();
                    cropBoxData = this.getCropBoxData();
                }

                this.render();

                if (restore) {
                    this.setCanvasData($.each(canvasData, function (i, n) {
                        canvasData[i] = n * ratio;
                    }));
                    this.setCropBoxData($.each(cropBoxData, function (i, n) {
                        cropBoxData[i] = n * ratio;
                    }));
                }
            }
        },

        dblclick: function () {
            if (this.isDisabled) {
                return;
            }

            if (this.$dragBox.hasClass(CLASS_CROP)) {
                this.setDragMode(ACTION_MOVE);
            } else {
                this.setDragMode(ACTION_CROP);
            }
        },

        wheel: function (event) {
            var e = event.originalEvent || event;
            var ratio = num(this.options.wheelZoomRatio) || 0.1;
            var delta = 1;

            if (this.isDisabled) {
                return;
            }

            event.preventDefault();

            // Limit wheel speed to prevent zoom too fast
            if (this.wheeling) {
                return;
            }

            this.wheeling = true;

            setTimeout($.proxy(function () {
                this.wheeling = false;
            }, this), 50);

            if (e.deltaY) {
                delta = e.deltaY > 0 ? 1 : -1;
            } else if (e.wheelDelta) {
                delta = -e.wheelDelta / 120;
            } else if (e.detail) {
                delta = e.detail > 0 ? 1 : -1;
            }

            this.zoom(-delta * ratio, event);
        },

        cropStart: function (event) {
            var options = this.options;
            var originalEvent = event.originalEvent;
            var touches = originalEvent && originalEvent.touches;
            var e = event;
            var touchesLength;
            var action;

            if (this.isDisabled) {
                return;
            }

            if (touches) {
                touchesLength = touches.length;

                if (touchesLength > 1) {
                    if (options.zoomable && options.zoomOnTouch && touchesLength === 2) {
                        e = touches[1];
                        this.startX2 = e.pageX;
                        this.startY2 = e.pageY;
                        action = ACTION_ZOOM;
                    } else {
                        return;
                    }
                }

                e = touches[0];
            }

            action = action || $(e.target).data(DATA_ACTION);

            if (REGEXP_ACTIONS.test(action)) {
                if (this.trigger(EVENT_CROP_START, {
                    originalEvent: originalEvent,
                    action: action
                }).isDefaultPrevented()) {
                    return;
                }

                event.preventDefault();

                this.action = action;
                this.cropping = false;

                // IE8  has `event.pageX/Y`, but not `event.originalEvent.pageX/Y`
                // IE10 has `event.originalEvent.pageX/Y`, but not `event.pageX/Y`
                this.startX = e.pageX || originalEvent && originalEvent.pageX;
                this.startY = e.pageY || originalEvent && originalEvent.pageY;

                if (action === ACTION_CROP) {
                    this.cropping = true;
                    this.$dragBox.addClass(CLASS_MODAL);
                }
            }
        },

        cropMove: function (event) {
            var options = this.options;
            var originalEvent = event.originalEvent;
            var touches = originalEvent && originalEvent.touches;
            var e = event;
            var action = this.action;
            var touchesLength;

            if (this.isDisabled) {
                return;
            }

            if (touches) {
                touchesLength = touches.length;

                if (touchesLength > 1) {
                    if (options.zoomable && options.zoomOnTouch && touchesLength === 2) {
                        e = touches[1];
                        this.endX2 = e.pageX;
                        this.endY2 = e.pageY;
                    } else {
                        return;
                    }
                }

                e = touches[0];
            }

            if (action) {
                if (this.trigger(EVENT_CROP_MOVE, {
                    originalEvent: originalEvent,
                    action: action
                }).isDefaultPrevented()) {
                    return;
                }

                event.preventDefault();

                this.endX = e.pageX || originalEvent && originalEvent.pageX;
                this.endY = e.pageY || originalEvent && originalEvent.pageY;

                this.change(e.shiftKey, action === ACTION_ZOOM ? event : null);
            }
        },

        cropEnd: function (event) {
            var originalEvent = event.originalEvent;
            var action = this.action;

            if (this.isDisabled) {
                return;
            }

            if (action) {
                event.preventDefault();

                if (this.cropping) {
                    this.cropping = false;
                    this.$dragBox.toggleClass(CLASS_MODAL, this.isCropped && this.options.modal);
                }

                this.action = '';

                this.trigger(EVENT_CROP_END, {
                    originalEvent: originalEvent,
                    action: action
                });
            }
        },

        change: function (shiftKey, event) {
            var options = this.options;
            var aspectRatio = options.aspectRatio;
            var action = this.action;
            var container = this.container;
            var canvas = this.canvas;
            var cropBox = this.cropBox;
            var width = cropBox.width;
            var height = cropBox.height;
            var left = cropBox.left;
            var top = cropBox.top;
            var right = left + width;
            var bottom = top + height;
            var minLeft = 0;
            var minTop = 0;
            var maxWidth = container.width;
            var maxHeight = container.height;
            var renderable = true;
            var offset;
            var range;

            // Locking aspect ratio in "free mode" by holding shift key (#259)
            if (!aspectRatio && shiftKey) {
                aspectRatio = width && height ? width / height : 1;
            }

            if (this.isLimited) {
                minLeft = cropBox.minLeft;
                minTop = cropBox.minTop;
                maxWidth = minLeft + min(container.width, canvas.width, canvas.left + canvas.width);
                maxHeight = minTop + min(container.height, canvas.height, canvas.top + canvas.height);
            }

            range = {
                x: this.endX - this.startX,
                y: this.endY - this.startY
            };

            if (aspectRatio) {
                range.X = range.y * aspectRatio;
                range.Y = range.x / aspectRatio;
            }

            switch (action) {
                // Move crop box
                case ACTION_ALL:
                    left += range.x;
                    top += range.y;
                    break;

                // Resize crop box
                case ACTION_EAST:
                    if (range.x >= 0 && (right >= maxWidth || aspectRatio &&
                        (top <= minTop || bottom >= maxHeight))) {

                        renderable = false;
                        break;
                    }

                    width += range.x;

                    if (aspectRatio) {
                        height = width / aspectRatio;
                        top -= range.Y / 2;
                    }

                    if (width < 0) {
                        action = ACTION_WEST;
                        width = 0;
                    }

                    break;

                case ACTION_NORTH:
                    if (range.y <= 0 && (top <= minTop || aspectRatio &&
                        (left <= minLeft || right >= maxWidth))) {

                        renderable = false;
                        break;
                    }

                    height -= range.y;
                    top += range.y;

                    if (aspectRatio) {
                        width = height * aspectRatio;
                        left += range.X / 2;
                    }

                    if (height < 0) {
                        action = ACTION_SOUTH;
                        height = 0;
                    }

                    break;

                case ACTION_WEST:
                    if (range.x <= 0 && (left <= minLeft || aspectRatio &&
                        (top <= minTop || bottom >= maxHeight))) {

                        renderable = false;
                        break;
                    }

                    width -= range.x;
                    left += range.x;

                    if (aspectRatio) {
                        height = width / aspectRatio;
                        top += range.Y / 2;
                    }

                    if (width < 0) {
                        action = ACTION_EAST;
                        width = 0;
                    }

                    break;

                case ACTION_SOUTH:
                    if (range.y >= 0 && (bottom >= maxHeight || aspectRatio &&
                        (left <= minLeft || right >= maxWidth))) {

                        renderable = false;
                        break;
                    }

                    height += range.y;

                    if (aspectRatio) {
                        width = height * aspectRatio;
                        left -= range.X / 2;
                    }

                    if (height < 0) {
                        action = ACTION_NORTH;
                        height = 0;
                    }

                    break;

                case ACTION_NORTH_EAST:
                    if (aspectRatio) {
                        if (range.y <= 0 && (top <= minTop || right >= maxWidth)) {
                            renderable = false;
                            break;
                        }

                        height -= range.y;
                        top += range.y;
                        width = height * aspectRatio;
                    } else {
                        if (range.x >= 0) {
                            if (right < maxWidth) {
                                width += range.x;
                            } else if (range.y <= 0 && top <= minTop) {
                                renderable = false;
                            }
                        } else {
                            width += range.x;
                        }

                        if (range.y <= 0) {
                            if (top > minTop) {
                                height -= range.y;
                                top += range.y;
                            }
                        } else {
                            height -= range.y;
                            top += range.y;
                        }
                    }

                    if (width < 0 && height < 0) {
                        action = ACTION_SOUTH_WEST;
                        height = 0;
                        width = 0;
                    } else if (width < 0) {
                        action = ACTION_NORTH_WEST;
                        width = 0;
                    } else if (height < 0) {
                        action = ACTION_SOUTH_EAST;
                        height = 0;
                    }

                    break;

                case ACTION_NORTH_WEST:
                    if (aspectRatio) {
                        if (range.y <= 0 && (top <= minTop || left <= minLeft)) {
                            renderable = false;
                            break;
                        }

                        height -= range.y;
                        top += range.y;
                        width = height * aspectRatio;
                        left += range.X;
                    } else {
                        if (range.x <= 0) {
                            if (left > minLeft) {
                                width -= range.x;
                                left += range.x;
                            } else if (range.y <= 0 && top <= minTop) {
                                renderable = false;
                            }
                        } else {
                            width -= range.x;
                            left += range.x;
                        }

                        if (range.y <= 0) {
                            if (top > minTop) {
                                height -= range.y;
                                top += range.y;
                            }
                        } else {
                            height -= range.y;
                            top += range.y;
                        }
                    }

                    if (width < 0 && height < 0) {
                        action = ACTION_SOUTH_EAST;
                        height = 0;
                        width = 0;
                    } else if (width < 0) {
                        action = ACTION_NORTH_EAST;
                        width = 0;
                    } else if (height < 0) {
                        action = ACTION_SOUTH_WEST;
                        height = 0;
                    }

                    break;

                case ACTION_SOUTH_WEST:
                    if (aspectRatio) {
                        if (range.x <= 0 && (left <= minLeft || bottom >= maxHeight)) {
                            renderable = false;
                            break;
                        }

                        width -= range.x;
                        left += range.x;
                        height = width / aspectRatio;
                    } else {
                        if (range.x <= 0) {
                            if (left > minLeft) {
                                width -= range.x;
                                left += range.x;
                            } else if (range.y >= 0 && bottom >= maxHeight) {
                                renderable = false;
                            }
                        } else {
                            width -= range.x;
                            left += range.x;
                        }

                        if (range.y >= 0) {
                            if (bottom < maxHeight) {
                                height += range.y;
                            }
                        } else {
                            height += range.y;
                        }
                    }

                    if (width < 0 && height < 0) {
                        action = ACTION_NORTH_EAST;
                        height = 0;
                        width = 0;
                    } else if (width < 0) {
                        action = ACTION_SOUTH_EAST;
                        width = 0;
                    } else if (height < 0) {
                        action = ACTION_NORTH_WEST;
                        height = 0;
                    }

                    break;

                case ACTION_SOUTH_EAST:
                    if (aspectRatio) {
                        if (range.x >= 0 && (right >= maxWidth || bottom >= maxHeight)) {
                            renderable = false;
                            break;
                        }

                        width += range.x;
                        height = width / aspectRatio;
                    } else {
                        if (range.x >= 0) {
                            if (right < maxWidth) {
                                width += range.x;
                            } else if (range.y >= 0 && bottom >= maxHeight) {
                                renderable = false;
                            }
                        } else {
                            width += range.x;
                        }

                        if (range.y >= 0) {
                            if (bottom < maxHeight) {
                                height += range.y;
                            }
                        } else {
                            height += range.y;
                        }
                    }

                    if (width < 0 && height < 0) {
                        action = ACTION_NORTH_WEST;
                        height = 0;
                        width = 0;
                    } else if (width < 0) {
                        action = ACTION_SOUTH_WEST;
                        width = 0;
                    } else if (height < 0) {
                        action = ACTION_NORTH_EAST;
                        height = 0;
                    }

                    break;

                // Move canvas
                case ACTION_MOVE:
                    this.move(range.x, range.y);
                    renderable = false;
                    break;

                // Zoom canvas
                case ACTION_ZOOM:
                    this.zoom((function (x1, y1, x2, y2) {
                        var z1 = sqrt(x1 * x1 + y1 * y1);
                        var z2 = sqrt(x2 * x2 + y2 * y2);

                        return (z2 - z1) / z1;
                    })(
                        abs(this.startX - this.startX2),
                        abs(this.startY - this.startY2),
                        abs(this.endX - this.endX2),
                        abs(this.endY - this.endY2)
                    ), event);
                    this.startX2 = this.endX2;
                    this.startY2 = this.endY2;
                    renderable = false;
                    break;

                // Create crop box
                case ACTION_CROP:
                    if (!range.x || !range.y) {
                        renderable = false;
                        break;
                    }

                    offset = this.$cropper.offset();
                    left = this.startX - offset.left;
                    top = this.startY - offset.top;
                    width = cropBox.minWidth;
                    height = cropBox.minHeight;

                    if (range.x > 0) {
                        action = range.y > 0 ? ACTION_SOUTH_EAST : ACTION_NORTH_EAST;
                    } else if (range.x < 0) {
                        left -= width;
                        action = range.y > 0 ? ACTION_SOUTH_WEST : ACTION_NORTH_WEST;
                    }

                    if (range.y < 0) {
                        top -= height;
                    }

                    // Show the crop box if is hidden
                    if (!this.isCropped) {
                        this.$cropBox.removeClass(CLASS_HIDDEN);
                        this.isCropped = true;

                        if (this.isLimited) {
                            this.limitCropBox(true, true);
                        }
                    }

                    break;

                // No default
            }

            if (renderable) {
                cropBox.width = width;
                cropBox.height = height;
                cropBox.left = left;
                cropBox.top = top;
                this.action = action;

                this.renderCropBox();
            }

            // Override
            this.startX = this.endX;
            this.startY = this.endY;
        },

        // Show the crop box manually
        crop: function () {
            if (!this.isBuilt || this.isDisabled) {
                return;
            }

            if (!this.isCropped) {
                this.isCropped = true;
                this.limitCropBox(true, true);

                if (this.options.modal) {
                    this.$dragBox.addClass(CLASS_MODAL);
                }

                this.$cropBox.removeClass(CLASS_HIDDEN);
            }

            this.setCropBoxData(this.initialCropBox);
        },

        // Reset the image and crop box to their initial states
        reset: function () {
            if (!this.isBuilt || this.isDisabled) {
                return;
            }

            this.image = $.extend({}, this.initialImage);
            this.canvas = $.extend({}, this.initialCanvas);
            this.cropBox = $.extend({}, this.initialCropBox);

            this.renderCanvas();

            if (this.isCropped) {
                this.renderCropBox();
            }
        },

        // Clear the crop box
        clear: function () {
            if (!this.isCropped || this.isDisabled) {
                return;
            }

            $.extend(this.cropBox, {
                left: 0,
                top: 0,
                width: 0,
                height: 0
            });

            this.isCropped = false;
            this.renderCropBox();

            this.limitCanvas(true, true);

            // Render canvas after crop box rendered
            this.renderCanvas();

            this.$dragBox.removeClass(CLASS_MODAL);
            this.$cropBox.addClass(CLASS_HIDDEN);
        },

        /**
         * Replace the image's src and rebuild the cropper
         *
         * @param {String} url
         * @param {Boolean} onlyColorChanged (optional)
         */
        replace: function (url, onlyColorChanged) {
            if (!this.isDisabled && url) {
                if (this.isImg) {
                    this.$element.attr('src', url);
                }

                if (onlyColorChanged) {
                    this.url = url;
                    this.$clone.attr('src', url);

                    if (this.isBuilt) {
                        this.$preview.find('img').add(this.$clone2).attr('src', url);
                    }
                } else {
                    if (this.isImg) {
                        this.isReplaced = true;
                    }

                    // Clear previous data
                    this.options.data = null;
                    this.load(url);
                }
            }
        },

        // Enable (unfreeze) the cropper
        enable: function () {
            if (this.isBuilt) {
                this.isDisabled = false;
                this.$cropper.removeClass(CLASS_DISABLED);
            }
        },

        // Disable (freeze) the cropper
        disable: function () {
            if (this.isBuilt) {
                this.isDisabled = true;
                this.$cropper.addClass(CLASS_DISABLED);
            }
        },

        // Destroy the cropper and remove the instance from the image
        destroy: function () {
            var $this = this.$element;

            if (this.isLoaded) {
                if (this.isImg && this.isReplaced) {
                    $this.attr('src', this.originalUrl);
                }

                this.unbuild();
                $this.removeClass(CLASS_HIDDEN);
            } else {
                if (this.isImg) {
                    $this.off(EVENT_LOAD, this.start);
                } else if (this.$clone) {
                    this.$clone.remove();
                }
            }

            $this.removeData(NAMESPACE);
        },

        /**
         * Move the canvas with relative offsets
         *
         * @param {Number} offsetX
         * @param {Number} offsetY (optional)
         */
        move: function (offsetX, offsetY) {
            var canvas = this.canvas;

            this.moveTo(
                isUndefined(offsetX) ? offsetX : canvas.left + num(offsetX),
                isUndefined(offsetY) ? offsetY : canvas.top + num(offsetY)
            );
        },

        /**
         * Move the canvas to an absolute point
         *
         * @param {Number} x
         * @param {Number} y (optional)
         */
        moveTo: function (x, y) {
            var canvas = this.canvas;
            var isChanged = false;

            // If "y" is not present, its default value is "x"
            if (isUndefined(y)) {
                y = x;
            }

            x = num(x);
            y = num(y);

            if (this.isBuilt && !this.isDisabled && this.options.movable) {
                if (isNumber(x)) {
                    canvas.left = x;
                    isChanged = true;
                }

                if (isNumber(y)) {
                    canvas.top = y;
                    isChanged = true;
                }

                if (isChanged) {
                    this.renderCanvas(true);
                }
            }
        },

        /**
         * Zoom the canvas with a relative ratio
         *
         * @param {Number} ratio
         * @param {jQuery Event} _event (private)
         */
        zoom: function (ratio, _event) {
            var canvas = this.canvas;

            ratio = num(ratio);

            if (ratio < 0) {
                ratio =  1 / (1 - ratio);
            } else {
                ratio = 1 + ratio;
            }

            this.zoomTo(canvas.width * ratio / canvas.naturalWidth, _event);
        },

        /**
         * Zoom the canvas to an absolute ratio
         *
         * @param {Number} ratio
         * @param {jQuery Event} _event (private)
         */
        zoomTo: function (ratio, _event) {
            var options = this.options;
            var canvas = this.canvas;
            var width = canvas.width;
            var height = canvas.height;
            var naturalWidth = canvas.naturalWidth;
            var naturalHeight = canvas.naturalHeight;
            var originalEvent;
            var newWidth;
            var newHeight;
            var offset;
            var center;

            ratio = num(ratio);

            if (ratio >= 0 && this.isBuilt && !this.isDisabled && options.zoomable) {
                newWidth = naturalWidth * ratio;
                newHeight = naturalHeight * ratio;

                if (_event) {
                    originalEvent = _event.originalEvent;
                }

                if (this.trigger(EVENT_ZOOM, {
                    originalEvent: originalEvent,
                    oldRatio: width / naturalWidth,
                    ratio: newWidth / naturalWidth
                }).isDefaultPrevented()) {
                    return;
                }

                if (originalEvent) {
                    offset = this.$cropper.offset();
                    center = originalEvent.touches ? getTouchesCenter(originalEvent.touches) : {
                        pageX: _event.pageX || originalEvent.pageX || 0,
                        pageY: _event.pageY || originalEvent.pageY || 0
                    };

                    // Zoom from the triggering point of the event
                    canvas.left -= (newWidth - width) * (
                        ((center.pageX - offset.left) - canvas.left) / width
                    );
                    canvas.top -= (newHeight - height) * (
                        ((center.pageY - offset.top) - canvas.top) / height
                    );
                } else {

                    // Zoom from the center of the canvas
                    canvas.left -= (newWidth - width) / 2;
                    canvas.top -= (newHeight - height) / 2;
                }

                canvas.width = newWidth;
                canvas.height = newHeight;
                this.renderCanvas(true);
            }
        },

        /**
         * Rotate the canvas with a relative degree
         *
         * @param {Number} degree
         */
        rotate: function (degree) {
            this.rotateTo((this.image.rotate || 0) + num(degree));
        },

        /**
         * Rotate the canvas to an absolute degree
         * https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function#rotate()
         *
         * @param {Number} degree
         */
        rotateTo: function (degree) {
            degree = num(degree);

            if (isNumber(degree) && this.isBuilt && !this.isDisabled && this.options.rotatable) {
                this.image.rotate = degree % 360;
                this.isRotated = true;
                this.renderCanvas(true);
            }
        },

        /**
         * Scale the image
         * https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function#scale()
         *
         * @param {Number} scaleX
         * @param {Number} scaleY (optional)
         */
        scale: function (scaleX, scaleY) {
            var image = this.image;
            var isChanged = false;

            // If "scaleY" is not present, its default value is "scaleX"
            if (isUndefined(scaleY)) {
                scaleY = scaleX;
            }

            scaleX = num(scaleX);
            scaleY = num(scaleY);

            if (this.isBuilt && !this.isDisabled && this.options.scalable) {
                if (isNumber(scaleX)) {
                    image.scaleX = scaleX;
                    isChanged = true;
                }

                if (isNumber(scaleY)) {
                    image.scaleY = scaleY;
                    isChanged = true;
                }

                if (isChanged) {
                    this.renderImage(true);
                }
            }
        },

        /**
         * Scale the abscissa of the image
         *
         * @param {Number} scaleX
         */
        scaleX: function (scaleX) {
            var scaleY = this.image.scaleY;

            this.scale(scaleX, isNumber(scaleY) ? scaleY : 1);
        },

        /**
         * Scale the ordinate of the image
         *
         * @param {Number} scaleY
         */
        scaleY: function (scaleY) {
            var scaleX = this.image.scaleX;

            this.scale(isNumber(scaleX) ? scaleX : 1, scaleY);
        },

        /**
         * Get the cropped area position and size data (base on the original image)
         *
         * @param {Boolean} isRounded (optional)
         * @return {Object} data
         */
        getData: function (isRounded) {
            var options = this.options;
            var image = this.image;
            var canvas = this.canvas;
            var cropBox = this.cropBox;
            var ratio;
            var data;

            if (this.isBuilt && this.isCropped) {
                data = {
                    x: cropBox.left - canvas.left,
                    y: cropBox.top - canvas.top,
                    width: cropBox.width,
                    height: cropBox.height
                };

                ratio = image.width / image.naturalWidth;

                $.each(data, function (i, n) {
                    n = n / ratio;
                    data[i] = isRounded ? round(n) : n;
                });

            } else {
                data = {
                    x: 0,
                    y: 0,
                    width: 0,
                    height: 0
                };
            }

            if (options.rotatable) {
                data.rotate = image.rotate || 0;
            }

            if (options.scalable) {
                data.scaleX = image.scaleX || 1;
                data.scaleY = image.scaleY || 1;
            }

            return data;
        },

        /**
         * Set the cropped area position and size with new data
         *
         * @param {Object} data
         */
        setData: function (data) {
            var options = this.options;
            var image = this.image;
            var canvas = this.canvas;
            var cropBoxData = {};
            var isRotated;
            var isScaled;
            var ratio;

            if ($.isFunction(data)) {
                data = data.call(this.element);
            }

            if (this.isBuilt && !this.isDisabled && $.isPlainObject(data)) {
                if (options.rotatable) {
                    if (isNumber(data.rotate) && data.rotate !== image.rotate) {
                        image.rotate = data.rotate;
                        this.isRotated = isRotated = true;
                    }
                }

                if (options.scalable) {
                    if (isNumber(data.scaleX) && data.scaleX !== image.scaleX) {
                        image.scaleX = data.scaleX;
                        isScaled = true;
                    }

                    if (isNumber(data.scaleY) && data.scaleY !== image.scaleY) {
                        image.scaleY = data.scaleY;
                        isScaled = true;
                    }
                }

                if (isRotated) {
                    this.renderCanvas();
                } else if (isScaled) {
                    this.renderImage();
                }

                ratio = image.width / image.naturalWidth;

                if (isNumber(data.x)) {
                    cropBoxData.left = data.x * ratio + canvas.left;
                }

                if (isNumber(data.y)) {
                    cropBoxData.top = data.y * ratio + canvas.top;
                }

                if (isNumber(data.width)) {
                    cropBoxData.width = data.width * ratio;
                }

                if (isNumber(data.height)) {
                    cropBoxData.height = data.height * ratio;
                }

                this.setCropBoxData(cropBoxData);
            }
        },

        /**
         * Get the container size data
         *
         * @return {Object} data
         */
        getContainerData: function () {
            return this.isBuilt ? this.container : {};
        },

        /**
         * Get the image position and size data
         *
         * @return {Object} data
         */
        getImageData: function () {
            return this.isLoaded ? this.image : {};
        },

        /**
         * Get the canvas position and size data
         *
         * @return {Object} data
         */
        getCanvasData: function () {
            var canvas = this.canvas;
            var data = {};

            if (this.isBuilt) {
                $.each([
                    'left',
                    'top',
                    'width',
                    'height',
                    'naturalWidth',
                    'naturalHeight'
                ], function (i, n) {
                    data[n] = canvas[n];
                });
            }

            return data;
        },

        /**
         * Set the canvas position and size with new data
         *
         * @param {Object} data
         */
        setCanvasData: function (data) {
            var canvas = this.canvas;
            var aspectRatio = canvas.aspectRatio;

            if ($.isFunction(data)) {
                data = data.call(this.$element);
            }

            if (this.isBuilt && !this.isDisabled && $.isPlainObject(data)) {
                if (isNumber(data.left)) {
                    canvas.left = data.left;
                }

                if (isNumber(data.top)) {
                    canvas.top = data.top;
                }

                if (isNumber(data.width)) {
                    canvas.width = data.width;
                    canvas.height = data.width / aspectRatio;
                } else if (isNumber(data.height)) {
                    canvas.height = data.height;
                    canvas.width = data.height * aspectRatio;
                }

                this.renderCanvas(true);
            }
        },

        /**
         * Get the crop box position and size data
         *
         * @return {Object} data
         */
        getCropBoxData: function () {
            var cropBox = this.cropBox;
            var data;

            if (this.isBuilt && this.isCropped) {
                data = {
                    left: cropBox.left,
                    top: cropBox.top,
                    width: cropBox.width,
                    height: cropBox.height
                };
            }

            return data || {};
        },

        /**
         * Set the crop box position and size with new data
         *
         * @param {Object} data
         */
        setCropBoxData: function (data) {
            var cropBox = this.cropBox;
            var aspectRatio = this.options.aspectRatio;
            var isWidthChanged;
            var isHeightChanged;

            if ($.isFunction(data)) {
                data = data.call(this.$element);
            }

            if (this.isBuilt && this.isCropped && !this.isDisabled && $.isPlainObject(data)) {

                if (isNumber(data.left)) {
                    cropBox.left = data.left;
                }

                if (isNumber(data.top)) {
                    cropBox.top = data.top;
                }

                if (isNumber(data.width)) {
                    isWidthChanged = true;
                    cropBox.width = data.width;
                }

                if (isNumber(data.height)) {
                    isHeightChanged = true;
                    cropBox.height = data.height;
                }

                if (aspectRatio) {
                    if (isWidthChanged) {
                        cropBox.height = cropBox.width / aspectRatio;
                    } else if (isHeightChanged) {
                        cropBox.width = cropBox.height * aspectRatio;
                    }
                }

                this.renderCropBox();
            }
        },

        /**
         * Get a canvas drawn the cropped image
         *
         * @param {Object} options (optional)
         * @return {HTMLCanvasElement} canvas
         */
        getCroppedCanvas: function (options) {
            var originalWidth;
            var originalHeight;
            var canvasWidth;
            var canvasHeight;
            var scaledWidth;
            var scaledHeight;
            var scaledRatio;
            var aspectRatio;
            var canvas;
            var context;
            var data;

            if (!this.isBuilt || !SUPPORT_CANVAS) {
                return;
            }

            if (!this.isCropped) {
                return getSourceCanvas(this.$clone[0], this.image);
            }

            if (!$.isPlainObject(options)) {
                options = {};
            }

            data = this.getData();
            originalWidth = data.width;
            originalHeight = data.height;
            aspectRatio = originalWidth / originalHeight;

            if ($.isPlainObject(options)) {
                scaledWidth = options.width;
                scaledHeight = options.height;

                if (scaledWidth) {
                    scaledHeight = scaledWidth / aspectRatio;
                    scaledRatio = scaledWidth / originalWidth;
                } else if (scaledHeight) {
                    scaledWidth = scaledHeight * aspectRatio;
                    scaledRatio = scaledHeight / originalHeight;
                }
            }

            // The canvas element will use `Math.floor` on a float number, so floor first
            canvasWidth = floor(scaledWidth || originalWidth);
            canvasHeight = floor(scaledHeight || originalHeight);

            canvas = $('<canvas>')[0];
            canvas.width = canvasWidth;
            canvas.height = canvasHeight;
            context = canvas.getContext('2d');

            if (options.fillColor) {
                context.fillStyle = options.fillColor;
                context.fillRect(0, 0, canvasWidth, canvasHeight);
            }

            // https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.drawImage
            context.drawImage.apply(context, (function () {
                var source = getSourceCanvas(this.$clone[0], this.image);
                var sourceWidth = source.width;
                var sourceHeight = source.height;
                var canvas = this.canvas;
                var params = [source];

                // Source canvas
                var srcX = data.x + canvas.naturalWidth * (abs(data.scaleX || 1) - 1) / 2;
                var srcY = data.y + canvas.naturalHeight * (abs(data.scaleY || 1) - 1) / 2;
                var srcWidth;
                var srcHeight;

                // Destination canvas
                var dstX;
                var dstY;
                var dstWidth;
                var dstHeight;

                if (srcX <= -originalWidth || srcX > sourceWidth) {
                    srcX = srcWidth = dstX = dstWidth = 0;
                } else if (srcX <= 0) {
                    dstX = -srcX;
                    srcX = 0;
                    srcWidth = dstWidth = min(sourceWidth, originalWidth + srcX);
                } else if (srcX <= sourceWidth) {
                    dstX = 0;
                    srcWidth = dstWidth = min(originalWidth, sourceWidth - srcX);
                }

                if (srcWidth <= 0 || srcY <= -originalHeight || srcY > sourceHeight) {
                    srcY = srcHeight = dstY = dstHeight = 0;
                } else if (srcY <= 0) {
                    dstY = -srcY;
                    srcY = 0;
                    srcHeight = dstHeight = min(sourceHeight, originalHeight + srcY);
                } else if (srcY <= sourceHeight) {
                    dstY = 0;
                    srcHeight = dstHeight = min(originalHeight, sourceHeight - srcY);
                }

                // All the numerical parameters should be integer for `drawImage` (#476)
                params.push(floor(srcX), floor(srcY), floor(srcWidth), floor(srcHeight));

                // Scale destination sizes
                if (scaledRatio) {
                    dstX *= scaledRatio;
                    dstY *= scaledRatio;
                    dstWidth *= scaledRatio;
                    dstHeight *= scaledRatio;
                }

                // Avoid "IndexSizeError" in IE and Firefox
                if (dstWidth > 0 && dstHeight > 0) {
                    params.push(floor(dstX), floor(dstY), floor(dstWidth), floor(dstHeight));
                }

                return params;
            }).call(this));

            return canvas;
        },

        /**
         * Change the aspect ratio of the crop box
         *
         * @param {Number} aspectRatio
         */
        setAspectRatio: function (aspectRatio) {
            var options = this.options;

            if (!this.isDisabled && !isUndefined(aspectRatio)) {

                // 0 -> NaN
                options.aspectRatio = max(0, aspectRatio) || NaN;

                if (this.isBuilt) {
                    this.initCropBox();

                    if (this.isCropped) {
                        this.renderCropBox();
                    }
                }
            }
        },

        /**
         * Change the drag mode
         *
         * @param {String} mode (optional)
         */
        setDragMode: function (mode) {
            var options = this.options;
            var croppable;
            var movable;

            if (this.isLoaded && !this.isDisabled) {
                croppable = mode === ACTION_CROP;
                movable = options.movable && mode === ACTION_MOVE;
                mode = (croppable || movable) ? mode : ACTION_NONE;

                this.$dragBox.
                data(DATA_ACTION, mode).
                toggleClass(CLASS_CROP, croppable).
                toggleClass(CLASS_MOVE, movable);

                if (!options.cropBoxMovable) {

                    // Sync drag mode to crop box when it is not movable(#300)
                    this.$face.
                    data(DATA_ACTION, mode).
                    toggleClass(CLASS_CROP, croppable).
                    toggleClass(CLASS_MOVE, movable);
                }
            }
        }
    };

    Cropper.DEFAULTS = {

        // Define the view mode of the cropper
        viewMode: 0, // 0, 1, 2, 3

        // Define the dragging mode of the cropper
        dragMode: 'crop', // 'crop', 'move' or 'none'

        // Define the aspect ratio of the crop box
        aspectRatio: NaN,

        // An object with the previous cropping result data
        data: null,

        // A jQuery selector for adding extra containers to preview
        preview: '',

        // Re-render the cropper when resize the window
        responsive: true,

        // Restore the cropped area after resize the window
        restore: true,

        // Check if the current image is a cross-origin image
        checkCrossOrigin: true,

        // Check the current image's Exif Orientation information
        checkOrientation: true,

        // Show the black modal
        modal: true,

        // Show the dashed lines for guiding
        guides: true,

        // Show the center indicator for guiding
        center: true,

        // Show the white modal to highlight the crop box
        highlight: true,

        // Show the grid background
        background: true,

        // Enable to crop the image automatically when initialize
        autoCrop: true,

        // Define the percentage of automatic cropping area when initializes
        autoCropArea: 0.8,

        // Enable to move the image
        movable: true,

        // Enable to rotate the image
        rotatable: true,

        // Enable to scale the image
        scalable: true,

        // Enable to zoom the image
        zoomable: true,

        // Enable to zoom the image by dragging touch
        zoomOnTouch: true,

        // Enable to zoom the image by wheeling mouse
        zoomOnWheel: true,

        // Define zoom ratio when zoom the image by wheeling mouse
        wheelZoomRatio: 0.1,

        // Enable to move the crop box
        cropBoxMovable: true,

        // Enable to resize the crop box
        cropBoxResizable: true,

        // Toggle drag mode between "crop" and "move" when click twice on the cropper
        toggleDragModeOnDblclick: true,

        // Size limitation
        minCanvasWidth: 0,
        minCanvasHeight: 0,
        minCropBoxWidth: 0,
        minCropBoxHeight: 0,
        minContainerWidth: 200,
        minContainerHeight: 100,

        // Shortcuts of events
        build: null,
        built: null,
        cropstart: null,
        cropmove: null,
        cropend: null,
        crop: null,
        zoom: null
    };

    Cropper.setDefaults = function (options) {
        $.extend(Cropper.DEFAULTS, options);
    };

    Cropper.TEMPLATE = (
        '<div class="cropper-container">' +
        '<div class="cropper-wrap-box">' +
        '<div class="cropper-canvas"></div>' +
        '</div>' +
        '<div class="cropper-drag-box"></div>' +

        '</div>'
    );

    // Save the other cropper
    Cropper.other = $.fn.cropper;

    // Register as jQuery plugin
    $.fn.cropper = function (option) {
        var args = toArray(arguments, 1);
        var result;

        this.each(function () {
            var $this = $(this);
            var data = $this.data(NAMESPACE);
            var options;
            var fn;

            if (!data) {
                if (/destroy/.test(option)) {
                    return;
                }

                options = $.extend({}, $this.data(), $.isPlainObject(option) && option);
                $this.data(NAMESPACE, (data = new Cropper(this, options)));
            }

            if (typeof option === 'string' && $.isFunction(fn = data[option])) {
                result = fn.apply(data, args);
            }
        });

        return isUndefined(result) ? this : result;
    };

    $.fn.cropper.Constructor = Cropper;
    $.fn.cropper.setDefaults = Cropper.setDefaults;

    // No conflict
    $.fn.cropper.noConflict = function () {
        $.fn.cropper = Cropper.other;
        return this;
    };

});